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Finding the Fourth Proportional to 65,765,567.20, 98,648,350.80 and 65,765,567.20

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Solution

The fourth proportional to 65,765,567.20, 98,648,350.80 and 65,765,567.20 is: 98,648,350.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,765,567.20 : 98,648,350.80 = 65,765,567.20 : x
  2. Step 2: Convert to fraction form
    65,765,567.20/98,648,350.80 = 65,765,567.20/x
  3. Step 3: Cross multiply
    65,765,567.20x = 98,648,350.80 × 65,765,567.20
  4. Step 4: Simplify right side
    65,765,567.20x = 6,487,664,743,706,574
  5. Step 5: Solve for x
    x = 6,487,664,743,706,574/65,765,567.20
  6. Step 6: Final answer
    x = 98,648,350.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.